PP注射成型汽车保险杠填充及熔接痕CAE分析  

CAE analysis of filling and weld line of injection molded polypropylene auto bumper

作　　者：李永泉[1] 李峰[1] 孙晋[1] 

机构地区：[1]中国石油化工股份有限公司北京化工研究院,北京100013

出　　处：《合成树脂及塑料》2011年第5期17-20,共4页China Synthetic Resin and Plastics

摘　　要：借助Moldflow软件,通过最佳浇口位置分析并结合制件结构,确定了汽车前保险杠的两种浇口位置方案。对采用的汽车保险杠专用树脂高抗冲聚丙烯1215C进行了流变性能、压力-体积-温度关系曲线及热传导系数等的测定。通过Moldflow软件比较了两种浇口位置对制品产生熔接痕的位置、数量的影响以及熔体遇合角度与温度对熔接痕质量的影响。确定了当制品采用方案2的浇口位置时,熔接痕对产品外观性能影响较小。Two gate location schemes to produce auto bumper via injection molding were determined by means of Moldflow software based on the analysis of the optimal gate location and the structure of the parts. The rheological properties, pressure-volume-temperature curves and thermal conductivity of high impact polypropylene special resin for auto bumper, 1215C, were tested. The effect of the two gate locations on the position and amount of weld line of the parts and the effect of weld line converging angle and temperature on the quality of weld line were studied with Moldflow. The weld line had smaller influence on the appearance and properties of the parts in the case of scheme 2.

关 键 词：聚丙烯 熔接痕 MOLDFLOW 汽车保险杠 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] TQ320.66